/* ***** BEGIN LICENSE BLOCK *****
 *   Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is NotAwesome.
 *
 * The Initial Developer of the Original Code is
 * Sid Stamm.
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Sid Stamm <sid@mozilla.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 * 
 * ***** END LICENSE BLOCK ***** */


const DEBUG = false; //true for debugging messages

//global helpers for debugging
function my_dump(x) {
  if(DEBUG) { dump("[NOTAWESOME] " + x + "\n"); }
}
function my_dump_props(x, showValues) {
  if(!DEBUG) { return; }
  for(let p in x) {
    var thing = p;
    if(showValues) { thing = thing + " = " + x[p]; }
    my_dump("[" + thing + "]");
  }
}

//// Set up a preferences reader ////
(function () {
  var prefs = Cc["@mozilla.org/preferences-service;1"]
                .getService(Ci.nsIPrefService);
  var prefb = prefs.getBranch("extensions.notawesome@sidstamm.com.");
  DEBUG = prefb.getBoolPref("debug");
  prefb.QueryInterface(Ci.nsIPrefBranch2);
  prefb.addObserver("", {
    observe: function(subj, topic, data) {
      if(topic != "nsPref:changed") { return; }
      if(data === "debug") {
        DEBUG = prefb.getBoolPref("debug");
      }
    }}, false);
})();


//// The module (takes care of fooling with stuff. ////

NotAwesome = {

/**
 * Set up the event listener to watch for panel open/close.
 */
init:
  function() {
    var bmpelt = document.getElementById('editBookmarkPanel');
    bmpelt.addEventListener('popupshown', NotAwesome, false);
    var ac_box = document.getElementById('PopupAutoCompleteRichResult');
    ac_box.richlistbox.addEventListener('DOMSubtreeModified', NotAwesome, false);
    ac_box.richlistbox.addEventListener('DOMNodeInserted', NotAwesome, false);
    NotAwesome._ac_box = ac_box.richlistbox;
  },

handleEvent:
  function(aEvent) {
    if(aEvent.originalTarget.id === 'editBookmarkPanel') {
      NotAwesome.initCheckbox();
    } else if(aEvent.originalTarget.tagName === 'richlistitem') {
      var rli = aEvent.originalTarget;
      try { 
        let tags;
        let title = rli.getAttribute("title");
        [, title, tags] = title.match(/^(.+) \u2013 (.+)$/);
        for each(let t in tags.split(",")) {
          if(t === "notawesome") {
            //delete it
            my_dump("hiding URL " + rli.getAttribute("url"));
            NotAwesome._ac_box.removeChild(rli);
          }
        }
      } catch (e){ }
    }
  },

initCheckbox:
  function() {
    var elt = document.getElementById('notAwesomeCheckbox');
    var tags = PlacesUtils.tagging.getTagsForURI(gBrowser.currentURI, {});
    elt.checked = false;
    for each(var t in tags) {
      if(t === 'notawesome') {
        elt.checked = true;
        break;
      }
    }
  },

checkboxClick: 
  function(chbx, event) {
    // Figure out what bookmark this is and insert or remove "notawesome" tag.
    //alert("CHBX: " + chbx.checked + "\n " + gBrowser.currentURI);

    var aURI = gBrowser.currentURI;

    if(chbx.checked) {  //transition checked->unchecked
      PlacesUtils.tagging.untagURI(aURI, ['notawesome']);
      my_dump("unhiding " + aURI.asciiSpec);
    } else {            //transition unchecked->checked
      PlacesUtils.tagging.tagURI(aURI, ['notawesome']);
      my_dump("hiding " + aURI.asciiSpec);
    }
  },
};

//delayed init so we don't get inited before the overlay for places
window.addEventListener("load", NotAwesome.init, false);
